Door hinge



Se t. 1, 1959 R. F. MARQUIS 2,901,766

DOORHINGE Filed March 21, 1958 2 Sheets-Sheet l Fuji- INVENTOR. RKZHARDF. MARQUIS Arron; EYS

Sept. 1, 1959 R. F. MARQUIS DOOR HINGE 2 Sheets-Sheet 2 Filed March 21,1958 INVENTOR. RlCHARD F MARQUIS ATTORNEYS Uite assures Patented Sept.l, 1959 DOOR HINGE Richard F. Marquis, Bellefontaine, Ohio ApplicationMarch 21, 1958, Serial No. 722,964

11 Claims. (Cl. 16-164) This invention relates to a door hinge and moreparticularly to an improved, articulated door hinge of the concealedtype that enables a door associated therewith to be opened in a moreelfective manner.

A concealed hinge according to the invention enables a door to be openedfully so that all portions thereof are beyond the limits of the dooropening. An opening of maximum area is thereby provided and a greateraccess area is available than is possible with conventional hinges. Ahinge according to the invention is, therefore, particularlyadvantageous for door openings through which large objects aretransported and also where fully unobstructed openings are desirable asin busses, streetcars and the like. The new hinge also enables a door totravel in a path having a shape of an ellipsoid segment,

with the door traveling in a relatively flat arc when first opened andin a more acute are when further opened. The door thus does notinterfere with another door or door jamb.

It is, therefore, a principal object of the invention to provide animproved, concealed door hinge which enables a door to be opened clearof the door opening.

Other objects of the invention will be suggested from the followingdetailed description of a preferred embodiment thereof, reference beingmade to the accompanying drawing, in which:

Fig. 1 is a view in cross section of aportion of a door and a portion ofa vehicle body, showing a hinge according to the invention, with thedoor in closed position;

Fig. 2 is a view similar to Fig. 1 with the door in an open position;

Fig. 3 is an enlarged view in perspective of a portion of the hinge; and

Fig. 4 is a view in perspective of portions of the hinge and itsmounting.

A hinge according to the invention is particularly intended for use inconnection with ambulance or funeral coaches where a maximum dooropening is desired to establish a better access for the insertion andremoval of stretchers, caskets, and the like. The invention is not to belimited in any manner to vehicles however, because it can be equallywell used in conjunction with doors for buildings, ships, houses,refrigerators, safes, and other almost unlimited applications.

Referring to the drawings, and more particularly to Fig. l, a hinge l1embodying the invention is shown in connection with a portion of a door12 and a door hinge post or door jarnb 13, which is part of a vehiclebody.

door pins 18 and 19.

The door 12 has a hinge end 14 to which a butt plate 15 is suitablyattached, for example, by welds or screws. The plate 15 has two bearingsleeves 16 and 17 (see Fig. 3) through which door pins 18 and 19respectively extend in spaced relation transversely of the door. In thedoor jamb 13, there are two vertically spaced horizontal bearing plates24 and 21 (see Fig. 4) which form a hinge receiving space that outwardlyopens through the jamb face and holds two vertical, parallel jamb pins22 and 23. These pins are spaced inwardly one from the othertransversely of the jamb adjacent to its outer side.

A hinge leaf 24 is mounted on the pin 22 and has a jamb leg or straightportion 25, the length of which is slightly greater than the distancefrom the pin 22 to the edge of the jamb 13. It also has a door leg orgenerally arcuate portion 26 which is spaced laterally from the pin 22 adistance at least as great as the distance from the pin 22 to the edgeof the jamb 13. The straight portion 25 has at its free end a bearingsleeve 27 through which the pin 22 extends, and the arcuate portion 26has at its free end a bearing sleeve 28 through which the pin 18extends. A guide link 29 is disposed lengthwise around the hinge leaf 24and has a jarnb leg or straight'portion 3d, the length of which is atleast as great as the distance from the pin 23 to the door jamb 13 plusthe thickness of the leaf 24. The straight portion 3 0 of the link 29has an integrally connected door leg or generally arcuate portion 31which is spaced laterally from the pin 23 a distance at least as greatas the length of the straight portion 39. The straight portion 3t) andthe arcuate portion 31 have respective bearing'sleeves 32 and 33 attheir outer ends through which the pins 23 and w respectively extend.

The jarnb pins 22 and 23 should be located in a plane roughlyperpendicular to a plane extending through the If the pin 23 is too farto the rear, away from the exterior of the vehicle, the door will notswing outwardly to a suificient extent because the arcuate paths of thepins 18 and 19 around the pins 22 and 2 3 will intersect and cause thedoor to jam. On the other hand, if the pin 23 is too far forward, towardthe exterior of the vehicle, the arcuate paths of the pins 13 and 19will tend to diverge too rapidly and the door 12 cannot be furtheropened when the minimum distance between the arcuate paths of the pins18 and 19 is greater than the distance between the pins 13 and 19. Therelationships of the pins is preferably such that the distance betweenthe two arcs is less than the distance between the pins 18 and 19 whenthe hinge leaf 24 and the guide link 29 are both against the door jamb,as shown in Fig. 2. Fig. 2 also shows an ellipsoidal are through whichthe hinge end 14 of the door travels. The latch side of the door, ofcourse, follows a similar arc.

The shapes of the hinge leaf 24 and the guide link 29 enable the entirehinge to be concealed within the jamb port when the door 12 is closed.Although the leaf and link are shown with the latter disposed around theformer, the hinge assembly will work equally effectively if the hingeleaf and guide link are spaced apart along the hinge end 14 of the door12. In either case, a hinge according to the invention comprises a hingeleaf having a jamb leg pivotally attached to the jamb and a door legpivotally attached to the door, and a guide link having a jamb legpivotally attached to the jamb and a door leg pivotally attached to thedoor.

I wish it understood that my invention is capable of variousmodifications which can be made without departing from the scope of theinvention as defined in the appended claims.

What I claim is:

l. A door hinge comprising a hinge leaf and a guide link, said hingeleaf having a straight portion for pivotally attaching to a door jamband an arcuate portion for pivotally attaching to the hinge edge of adoor, said guide link having a straight portion and an arcuate portion,with the strai ht portion of the guide link longer than the straightportion of the hinge leaf and for pivotally attaching to the jamb, saidlink arcuate portion being spaced from the link jamb pivot a greaterdistance than said leaf arcuate portion is spaced from the leaf jarnbpivot, and said arcuate link portion adapted to be pivotally attached tothe hinge edge of the door.

2. A door hinge comprising a hinge leaf and a guide link, said hingeleaf having a straight portion and an arcuate portion, said straightportion adapted for pivotally attaching to a door jamb and said arcuateportion adapted for pivotally attaching to the hinge edge of anassociated door adjacent to its outer side, said guide link having astraight portion and an arcuate portion with the straight portionadapted for pivotally attaching to the door jarnh at a distance from theedge of said jamb greater than the distance between said leaf jarnbpivot and the edge of said jamb, and said link arcuate portion adaptedfor pivotally attaching to the hinge edge of the door farther from theouter side thereof than is the leaf door pivot.

3. A door hinge comprising a hinge leaf and a guide link, said leafhaving a straight portion and an arcuate portion With the straightportion adapted for pivotally attaching to a door jamb and the arcuateportion adapted for pivotally attaching to the hinge edge of anassociated door adjacent to its outer side, said guide link having astraight portion and an arcuate portion with the straight portion longerthan the leaf straight portion and adapted for pivotally attaching tothe jamb at a distance from the edge of the jamb greater than thedistance from the edge of the jamb to said leaf jamb pivot, the arcuateportion of the link being spaced from the link jamb pivot a distancegreater than the distance said leaf arcuate portion is from the leafjamb pivot, and said link arcuate portion being adapted for pivotallyattaching to the hinge edge of the door at a distance from the outerside of the door greater than the distance the leaf door pivot is fromthe exterior surface of the door.

4. A door hinge comprising a hinge leaf and a guide link, said leafhaving a straight portion and an arcuate portion with said straightportion adapted for pivotally attaching to a door jamb and said arcuateportion adapted for pivotally attaching to the hinge edge of anassociated door, said guide link having a straight portion and anarcuate portion, With the straight portion adapted to be pivotallyattached to the door jamb in spaced relation to and at the side of theleaf jamb pivot opposite the door, and said leaf arcuate portion adaptedto be pivotally attached to the hinge edge of a door in a direction fromsaid leaf door pivot opposite to the direction in which the door opens.

5. A combination as called for in claim 4 in which the length of saidleaf straight portion exceeds the distance fro-m the leaf jamb pivot tothe edge of the door jamb, and said leaf arcuate portion is, at allportions thereof, at a distance from the leaf jamb pivot at least asgreat as the length of said leaf straight portion, and the length ofsaid link straight portion is at least as great as the distance fromsaid leaf jamb pivot to the edge of the door jamb plus the thickness ofthe hinge leaf, and said link arcuate portion is, at all points, a

distance from the link jamb pivot at least as great as the length ofsaid link straight portion.

6. A hinge for a door to pivotally connect the same to a door jamb, saidhinge comprising a hinge leaf, a guide link, said leaf having a jamb legand a door leg, said legs being integrally connected at an angle, saidjamb leg being adapted for pivotally attaching to the door jamb and saiddoor leg being adapted for pivotally attaching to the hinge edge of thedoor, said guide link having a jamb leg and a door leg, also integrallyconnected at an angle with the jarnb leg adapted for pivotally attachingto the jarnb on the side of said leaf j-ainb pivot opposite the door,and said link door leg adapted for pivotally attaching to the hinge edgeof the door in a direction from the leaf door pivot opposite to thedirection in which the door opens.

7. An apparatus as called for in claim 6 in which the length of saidleaf jamb leg exceeds the distance from its pivot to the edge of thedoor jarnb, said leaf door leg being, at all portions thereof, at adistance from the leaf jamb pivot at least as great as the length ofsaid leaf jamb leg, the length of said link jarnb leg being at least asgreat as the distance from the leaf jamb pivot to the edge of the doorjarnb plus the thickness of said hinge leaf, and said link door legbeing, at all portions thereof, a distance from the link jamb pivot atleast as great as the length of said link jamb leg.

8. A hinge for a door to pivotally connect the same to a door jamh, saidhinge comprising a hinge leaf and a guide link, said leaf having a jarnbleg and a door leg with a jarnb leg pivotally attached to the door jamband with the door leg pivotally attached to the hinge edge of the door,the length of said jamb leg being greater than the distance from theleaf jamb pivot to the edge of the jamb, and said door leg being, at allportions thereof, a distance from the leaf jarnb pivot greater than thelength of said jarnb leg, said guide link having a jamb leg and a doorleg with the link jamb leg longer than the leaf jamb leg and pivotallyattached to the jarnb at a distance from the edge of the jarnb greaterthan the distance from the edge of the jamb to the leaf jarnb leg pivot,said link door leg being spaced from the link jamb pivot a distancegreater than the distance said leaf door leg is from the leaf jambpivot, and said link door leg being pivotally attached to the hinge edgeof the door at a distance from the exterior surface of the door greaterthan the distance the leaf door pivot is from the exterior surface ofthe door.

9. A hinge assembly for a door to pivotally connect the same to a doorjamb, said hinge assembly comprising a pair of spaced plates supportedby the door jamb laterally to the longitudinal extent of the jamb andforming a recess between the plates, a hinge leaf having a jamb leg anda door leg integrally connected at an angle, said janib leg beingpivoted to said plates and said door leg being pivoted to the hinge edgeof the door, a guide link having a jamb leg and a door leg alsointegrally connected at an angle, each leg of said guide link beinglonger than the corresponding leg of said hinge leaf, the link jamb legbeing pivoted to said plates with a line through the link and leaf platepivots extending laterally to the edge of the jainb, and said link doorleg being pivoted to the hinge edge of the door with a line through thelink and leaf door pivots extending laterally to the exterior surface ofthe door.

10. A hinge assembly for a door to pivotally connect the same to a doorjamb, said hinge assembly comprising a pair of spaced plates supportedby the door jamb and disposed laterally to the longitudinal extent ofthe jamb, a hinge leaf having a jarnb leg and a door leg integrallyconnected at an angle, said jamb leg being pivoted to said plates andsaid door leg being pivoted to the hinge edge of the door, a guide linkhaving a jamb leg and a door leg also integrally connected at an angle,each leg of said link being longer than the corresponding leg of thehinge leaf with the link iamb leg pivoted to said plates on the side ofsaid leaf plate pivot opposite the door, and said link door leg beingpivoted to the hinge edge of the door in a direction from the leaf doorpivot opposite the direction in which the door opens.

11. A hinge assembly for a door to pivotally connect the same to a doorjamb, said hinge assembly comprising a pair of spaced plates disposedlaterally to the longitudinal extent of the door jamb, a hinge leafhaving a 10 straight portion pivoted to said plates and an arcuateportion pivoted to the hinge edge of the door, and a guide link having astraight portion pivoted to said plates and 6 an arcnate portion pivotedto the hinge edge of the door whereby said hinge leaf and said guidelink at least partially extend into the space between said plates whenthe door is closed.

References Cited in the file of this patent UNITED STATES PATENTS712,797 Holtzman Nov. 4, 1902 FOREIGN PATENTS 809,618 France Dec. 12,1936

